package com.yiji.fintech.musfinance.common.context;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import java.util.Map;

/**
 * spring 上下文
 * Created by ouwen@yiji.com} on 2017/9/15.
 */
@Component
@Slf4j
public class SpringApplicationContext implements ApplicationContextAware, InitializingBean {
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext arg0)
            throws BeansException {
        applicationContext = arg0;
    }

    /**
     * 获取applicationContext对象
     * @return
     */
    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    /**
     * 根据bean的id来查找对象
     * @param id
     * @return
     */
    public static Object getBeanById(String id){
        return applicationContext.getBean(id);
    }

    /**
     * 根据bean的class来查找对象
     * @param className
     * @return
     */
    public static Object getBeanByClass(Class className){
        return applicationContext.getBean(className);
    }

    public static Object getBeanByName(String name){
        return applicationContext.getBean(name);
    }
    /**
     * 根据bean的class来查找所有的对象(包括子类)
     * @param className
     * @return
     */
    public static Map getBeansByClass(Class className){
        return applicationContext.getBeansOfType(className);
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        log.info("初始化spring上下文");
    }
}
